body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  header {
    background: #00796b;
    color: white;
    padding: 15px 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: top 0.3s;
  }
  
  nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  nav ul li {
    display: inline-block;
    margin: 0 20px;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    padding: 5px 10px;
    transition: background-color 0.3s, color 0.3s;
  }
  
  nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: #b2dfdb;
    border-radius: 5px;
  }
  
  main {
    padding: 20px;
  }
  
  section {
    margin: 20px 0;
    padding: 20px;
    background: #b2dfdb;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  .mision-vision {
    display: flex;
    justify-content: space-between;
  }
  
  .mision,
  .vision {
    width: 48%;
  }
  
  .animal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
  }
  
  .animal-card {
    background: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 10px;
    text-align: center;
  }
  
  .animal-card img {
    max-width: 100%;
    border-radius: 5px;
  }
  
  .btn-formulario {
    display: inline-block;
    padding: 10px 20px;
    background-color: #009688;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 10px;
  }
  
  .btn-formulario:hover {
    background-color: #00796b;
  }
  
  .calendario {
    margin-top: 20px;
  }
  
  .contact-info {
    margin-top: 25px;
  }
  
  /* Estilos para mostrar los campos del formulario uno debajo del otro y centrados */
  
  #contact-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  
  .contact-form-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
  }
  
  .contact-form-container label {
    margin-top: 10px;
    text-align: center;
  }
  
  .contact-form-container input,
  .contact-form-container textarea,
  .contact-form-container select {
    padding: 10px;
    margin-top: 10px;
    border: 2px solid #ccc;
    border-radius: 15px;
    width: 100%;
    box-sizing: border-box;
  }
  
  #contact-form textarea {
    height: 150px;
    resize: vertical;
  }
  
  #contact-form button {
    margin-top: 20px;
    padding: 12px;
    background-color: #009688;
    color: white;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    width: 100%;
    max-width: 400px;
  }
  
  #contact-form button:hover {
    background-color: #00796b;
  }
  
  footer {
    text-align: center;
    padding: 10px 0;
    background: #00796b;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
  }
  
  @media (max-width: 600px) {
    nav ul li {
      display: block;
      margin: 10px 0;
    }
  
    .mision-vision {
      flex-direction: column;
    }
  
    .mision,
    .vision {
      width: 100%;
    }
  }
  
  /* Clase para ocultar la barra de navegación */
  header.hidden {
    top: -70px;
    transition: top 0.3s;
  }